Here I am using windows 10 os and sublime text editor to write down the AngularJS code

After Choosing the text-editor now download the AngularJs file from AngularJS official website

-Visit AngularJS Here.-Click on Download AngularJS.-Now in Build click on Uncompressed and download angular.min.js file to your local system.-Create a folder name as AngularJs and put that downloaded file inside it.-Now create a simple html file and add reference of angularJS file inside that html file as follow.